Effect of Humidity
"Dry" and "wet" are measured by "relative humidity". The "relative humidity" does not depend entirely on the amount of water (absolute humidity) in the air in the form of gaseous phase, but also depends on the temperature. When the "absolute humidity" remains unchanged, the temperature will rise and the "relative humidity" will decrease. In winter, the temperature is low, whether it is heating or air conditioning, the relative humidity will drop - dry. Drying will lead to ink easy to make material edge warping, especially PP paper, carelessly rubbing sprinkler, serious cases will cause sprinkler and motor damage.
Effect of Temperature
When the temperature decreases, the most common phenomenon is "false blockage" of nozzles, that is, "broken line" of individual nozzles. Because the same ink, the temperature decreases, the viscosity will become larger and the viscosity will be too high. When printing at high speed, it will easily appear "broken line". Many users of spray-painting machines will think that the nozzle is blocked, but after cleaning, horse. It's normal. It won't be long before it happens again. Some customers will think that ink quality is a problem. Secondly, the problem of ink absorption and drying is that too low temperature is not conducive to the absorption of ink by spray medium coating, nor to the volatilization of ink solvent. It causes the phenomenon of "ink pile up".
The influence of static electricity and dust
Another result of the decrease in relative humidity is an increase in static electricity and dust. Static electricity is the first cause of burnout of electronic products, because integrated circuits are most afraid of static electricity. Ten years ago, when computers were not "flying into ordinary people's homes", most of them were working in computer rooms, where special anti-static floors were installed. Nowadays, in ordinary indoor environment, especially when air conditioning is used and carpets are laid, the static electricity in winter is particularly easy to burn out circuit boards and spray nozzles. Static electricity will also lead to the reduction of printing quality, spray medium is mostly "insulated". If there is no good anti-static measures, or no grounding wire, spray film droplets will further adhere to the surface of the spray head because of the effect of static electricity, resulting in printing quality problems.